289

289 is an odd composite number. It is composed of a single prime number multiplied by itself.

What does the number 289 look like?

This visualization shows the relationship between its 1 prime factors (large circles) and 3 divisors.

289 is an odd composite number. It has a total of three divisors.

Prime factorization of 289:

172

(17 × 17)

See below for interesting mathematical facts about the number 289 from the Numbermatics database.


Names of 289

  • Cardinal: 289 can be written as Two hundred eighty-nine.

Scientific notation

  • Scientific notation: 2.89 × 102

Factors of 289

  • Number of distinct prime factors ω(n): 1
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 17

Divisors of 289

  • Number of divisors d(n): 3
  • Complete list of divisors:
    1 17 289
  • Sum of all divisors σ(n): 307
  • Sum of proper divisors (its aliquot sum) s(n): 18
  • 289 is a deficient number, because the sum of its proper divisors (18) is less than itself. Its deficiency is 271

Bases of 289

  • Binary: 1001000012
  • Hexadecimal: 0x121
  • Base-36: 81

Squares and roots of 289

  • 289 squared (2892) is 83521
  • 289 cubed (2893) is 24137569
  • 289 is a perfect square number. Its square root is 17
  • The cube root of 289 is 6.6114890183

Scales and comparisons

How big is 289?
  • 289 seconds is equal to 4 minutes, 49 seconds.
  • To count from 1 to 289 would take you about two minutes.

    This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

  • A cube with a volume of 289 cubic inches would be around 0.6 feet tall.

Recreational maths with 289

  • 289 backwards is 982
  • The number of decimal digits it has is: 3
  • The sum of 289's digits is 19
  • More coming soon!

Copy this link to share with anyone:


Share this page on social media:

Link to this page

HTML: To link to this page, just copy and paste the link below into your blog, web page or email.

BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:

Cite this page

MLA style:
"Number 289 - Facts about the integer". Numbermatics.com. 2024. Web. 19 March 2024.

APA style:
Numbermatics. (2024). Number 289 - Facts about the integer. Retrieved 19 March 2024, from https://numbermatics.com/n/289/

Chicago style:
Numbermatics. 2024. "Number 289 - Facts about the integer". https://numbermatics.com/n/289/

The information we have on file for 289 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

Keywords: Divisors of 289, math, Factors of 289, curriculum, school, college, exams, university, Prime factorization of 289, STEM, science, technology, engineering, physics, economics, calculator, two hundred eighty-nine.

Oh no. Javascript is switched off in your browser.
Some bits of this website may not work unless you switch it on.